Recognised as Colour
#FF9104
- #FF9104
- Orange
- Dark
- Nearest: Dark orange
#FF9104 is a orange with RGB values 255, 145, 4 and HSL 34°, 100%, 51%. It is a dark colour, so black text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark orange.
Colour values
#FF9104#FF9104
HEX#FF9104
RGBrgb(255, 145, 4)
RGB (0–1)1, 0.5686, 0.0157
RGB percentages100%, 56.9%, 1.6%
HSLhsl(33.7, 100%, 50.8%)
HSV / HSBhsv(33.7, 98.4%, 100%)
CMYK0%, 43.1%, 98.4%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,748,804
CSS custom property--colour: #FF9104;
Brightness & contrast
Relative luminance0.4152WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.3:1
Contrast with white2.26:1WCAG normal text: Fail
Contrast with black9.3:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#006EFB
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.26:1WCAG large text: Fail
Contrast with black, large text9.3:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0472FF
Analogous#FF1404, #F0FF04
Triadic#04FF91, #9104FF
Split complementary#04EFFF, #1404FF
Tetradic#04FF13, #0472FF, #FF04EF
Tints, shades & saturation
Channel breakdown
R255
G145
B4
Red255 (100%)
Green145 (56.9%)
Blue4 (1.6%)
Hue33.71°
Saturation (HSL)100%
Lightness50.78%
Dominant channelRed
Hex per channelR FF · G 91 · B 04
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Also reads as
FF9104 (chemical formula)
- Formula
- 172,976.79 g/mol
- 9105 atoms
FF9104 has a molar mass of 172,976.79 g/mol, made up of 9105 atoms across 1 element: 9105 × F.
Molar mass
Molar mass172,976.79 g/mol
Total atoms per molecule9105
Distinct elements1
Mass of one molecule2.8723472 × 10^-19 g
Molecules per gram3.4814733 × 10^18
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
F100%
Fluorine (F × 9105)172,976.79 g/mol, 100%
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